"First then, to stay these sudden Gusts of Passion / That hurry you from Reason, rest assur'd / The Secret of your Love lives with me only."

Metaphor in Context

SEOFRID. First then, to stay these sudden Gusts of Passion
That hurry you from Reason, rest assur'd
The Secret of your Love lives with me only.
The Dangers are not small that seem to threaten you;
Yet, would you trust you to your old Man's Care,
I durst be bold to warrant yet your Safety.
(II.i, p. 17)